cdfgeostrophy: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/cdfgeostrophy - from package: cdftools

You may install the required package with command apt-get install {package}

Error in other languages:
cdfgeostrophy: bevel nie gevind nie
cdfgeostrophy: comandă negăsită
cdfgeostrophy: comando não encontrado
cdfgeostrophy: commande introuvable
cdfgeostrophy: command not found
cdfgeostrophy: käsku ei ole
cdfgeostrophy: không tìm thấy lệnh
cdfgeostrophy: komanda nerasta
cdfgeostrophy: Kommando nicht gefunden.
cdfgeostrophy: kommandot finns inte
cdfgeostrophy: komut yok
cdfgeostrophy: nie znaleziono polecenia
cdfgeostrophy: níor aimsíodh an t-ordú
cdfgeostrophy: no se encontró la orden
cdfgeostrophy: no s'ha trobat l'ordre
cdfgeostrophy: opdracht niet gevonden
cdfgeostrophy: parancs nem található
cdfgeostrophy: perintah tidak ditemukan
cdfgeostrophy: príkaz nenájdený
cdfgeostrophy: příkaz nenalezen
cdfgeostrophy: команда не найдена
cdfgeostrophy: командата не е открита
cdfgeostrophy: 命令找不到
cdfgeostrophy: コマンドが見つかりません